12536319 has 4 divisors (see below), whose sum is σ = 16715096. Its totient is φ = 8357544.

The previous prime is 12536299. The next prime is 12536339. The reversal of 12536319 is 91363521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12536299) and next prime (12536339).

It is not a de Polignac number, because 12536319 - 2⁵ = 12536287 is a prime.

It is a super-2 number, since 2×12536319² = 314318588139522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12536339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2089384 + ... + 2089389.

It is an arithmetic number, because the mean of its divisors is an integer number (4178774).

Almost surely, 2^12536319 is an apocalyptic number.

12536319 is a deficient number, since it is larger than the sum of its proper divisors (4178777).

12536319 is an equidigital number, since it uses as much as digits as its factorization.

12536319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178776.

The product of its digits is 4860, while the sum is 30.

The square root of 12536319 is about 3540.6664626875. Note that the first 3 decimals coincide. The cubic root of 12536319 is about 232.3039948261.

The spelling of 12536319 in words is "twelve million, five hundred thirty-six thousand, three hundred nineteen".